40 CFR 147.753 - Existing Class I and III wells authorized by rule.

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§ 147.753 Existing Class I and III wells authorized by rule.
Maximum injection pressure. The owner or operator shall limit injection pressure to the lessor of:
(a) A value which will not exceed the operating requirements of § 144.28(f)(3) (i) or (ii) as applicable; or
(b) A value for well head pressure calculated by using the following formula:
Pm=(0.800-0.433 Sg)d
where:
Pm=injection pressure at the wellhead in pounds per square inch
Sg=specific gravity of injected fluid (unitless)
d=injection depth in feet.
[49 FR 20197, May 11, 1984, as amended at 56 FR 41072, Aug. 19, 1991]

Title 40 published on 2014-07-01

no entries appear in the Federal Register after this date.